Incinerating furnace



l. HELSETH.

INCINERATING FURNAGE.

APPLICATION HLED N0v.8,1917.

l., Patented. Jan. w, 192i las n.

ISAE HELSEIH, THEI BUYER FLLS, EQINNESTA.

INCXNERATNG FURNCE.

Specification of Letters Eatent.

Application filed November 8, 1917. Serial No. 200,880.

T-lni ted e iprovement in tion relates 'E ces for the :ne like thereinto.,

" -U s or sooooi f; A JF .e ition upon one grate s 4-n chamber.

)ose oit' i promoting combustion.

ortior lation The furnace provided with a plais-e or il, an ash pit 5 and combusin ne county oi -enninaton liinnesota, have invented a new lncinerating which the ltollowing is a speciimprovements in iburning or inuse and the like. nvention relates to re vwhich is adapted to coi means such es is disclosed in @rented to me Novem- Ylor piepaiinff introducing iis invention is to proeffective epp-aratus Whereal may be conveniently and iioyed;` the suoject matt r c i hmvevei constituting that the moin-rater Atoriviing the iie ich the material oi'ter being o ond consumed. lilly present inperticularly to the furl is provided with im- .-iiiiiip combustion, burning of the suol` material d With- 5er ohiect is to provide im- A y aii` to the grate most eifectively burning lNith invention comprises on and combination `re particularly de- YLn the accompanying drawings forming rt ot this specification9 l is a vertical l thereoiI i 2 is a section taken f rt oi the strucconcrete fountion chamber 67 said ash pit being so constructed that a truck B may be employed to receive the ashes and remove them. rlhe lire box and ash pit have at the front of the 'fui-nace, doors 'l and 8 respectively for the supply of fuel end the removal of the truck. Nithin the bottom ot' the lire box is ari ng-ed a grate to support the body ot' Nfuel. employed7 which `rate preferably consists of a metallic -roine Werl; 10, carrying rocking grate bei' sections il and l2. These bar sections have rods or shafts 13 projecting tirough the Yfurnace Wall which are adapted to be engaged by a lever or other means 'For transmitfinggrocking` motion to the grate sections to dump the ashes, etc.

Formed in the furnace Well around the is an air feed duct comprising` a pair o" parallel channels l5 and 16, located on el posite sides o the lire box and connected et the rear by a cross channel l? (see Fig.

)i1 which channels surround the tire box on Y.hice sides and communicate with the fire through opposite series oi ports 14 ith and above and below the grate, ivheizov :i course et circulation for tlre *ily of air in the ire bon around, above below the grate is provided to support com nistion to a l'iigijhly e'liicient degree, the

' preheated oi, ing its passage by the not Walls of the furnace, so as to oxygenate the burning mass oi' 'fuel to the highst possible degree. The iire box and comwstion chamber may he made out of any suitable resisting material such as lire mici; or the like, end the ire box communi- L L .L L. cares at its uppeix petition with the base 0I tne combustion chamber. Eis shown the base combustion chamber is provided at tivo ci' its opposite sides `vvith downwardly ing sloping; Walls 20, which are prei'- i, stepped and which overhang the lire ox and contract the top ot the same forming` a ong` nniovv passage 2l to permit the flames ii'om the bed of fuel on the grate bei), While the same time holding the body Garbage or refuse material supported es ist any ten lency to smother the flames or Choi-e tie 'flame outlet. By this means the body of fuel will be protected and proil, on made lor insuring the incineration o? the garbage oi' material above in a rapid manner. il. draft door of suitable con- Patented Jan. ill), LQL' struction may be provided for controlling the end of each of the air flues and 16.

The body of the combustion chamber is of substantially uniform diameter and extends up to a predetermined height. The uppery end of the combustion chamber is formed with a hollow frusto conical shaped dome 23 terminating at its upper extremity in an outlet 24 which discharges into the flue 25. At one side of the upper p art -of the combustion chamber is an opening 27 through which the refuse garbage or any material to beincinerated may be placed in the furnace when desired, said opening being closed by an outwardly swinging door 27. When the door is tipped back, it acts as a chute above the platform 28, so that material can be unloaded readily from wagons or receptacles and guided into the furnace. The top walls or lining of the furnace may be made out of any suitable fire. resisting material. The 4rail or beam track 29 disposed above the platform 28 facilitates the handling and discharging of heavy material above the platform and into the furnace. rlhe upper part of the combustion chamber is also provided with a lateral passage 30 through which wet garbage or material'to be incinerated may be introduced by any suitable means,such as fully illustrated in my Patent #1,245,914 above referred to, and through which heated gases from within the furnace may pass for drying wet refuse and garbage which enters the combustion chamber through the passage 30. Y

In accordance with the'patent statutes,

l have described the principles of operationof my invention together with the apparatus which I now consider to represent the best embodiment thereof, but desire to have it understood that the construction shown is only illustrative, and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what l claim as new and desire to protect by Letters Patent is 1. An incinerating furnace, comprising, in combination, a. combustion chamber having an outlet for smoke and gases and an inlet through which lrefuse mayV be fed, "a iire place, an ash pit below said fire place, and a grate supported in said fire place, the walls ofsaid fire place being formed with a hori- Zontal draft passage extending along each side of the grate and having ports, each of said ports entering the fire place immediately above and below said grate and with a pair of inward projections above said grate forining a narrow horizontal aperture through which the material supported upon said projection is exposed to fire on the'v grate,

said draft passage leading from the exterior y and supplying draft to said fire through said ports above and below said grate and said projections supporting refuse to be consumed spaced above said grate in effective position to support combustion.

An incinerating furnace, comprising, in combination, a combustion chamber having an outlet for smoke and gases and an inlet through which refuse may be fed, a

fire place, an ash pit below said fire place, Y

and a grate supported' in said fire place, the walls of said fire place being formed' with a draft passage leading horizontally from the exterior and along each Vside and across the rear portion of said grate, and with a series of ports lalong each side of said grate, each of' said ports leading from the adjacent portion of said passage into said fire place and 'ash pit immediately above and below said grate.. V

' n testimony whereof, I have signed'my name to this specification.

isii'K H'nLsnrn. 

